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EP3957861B1 - Dispositif de contrôle de température comprenant une pompe avec une enveloppe de refroidissement entourant une enceinte moteur - Google Patents

Dispositif de contrôle de température comprenant une pompe avec une enveloppe de refroidissement entourant une enceinte moteur

Info

Publication number
EP3957861B1
EP3957861B1 EP21181132.8A EP21181132A EP3957861B1 EP 3957861 B1 EP3957861 B1 EP 3957861B1 EP 21181132 A EP21181132 A EP 21181132A EP 3957861 B1 EP3957861 B1 EP 3957861B1
Authority
EP
European Patent Office
Prior art keywords
pump
medium
cooling jacket
chamber
storage tank
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP21181132.8A
Other languages
German (de)
English (en)
Other versions
EP3957861A1 (fr
Inventor
Hubert Peick
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Technotrans SE
Original Assignee
Technotrans SE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Technotrans SE filed Critical Technotrans SE
Publication of EP3957861A1 publication Critical patent/EP3957861A1/fr
Application granted granted Critical
Publication of EP3957861B1 publication Critical patent/EP3957861B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/5806—Cooling the drive system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/605—Mounting; Assembling; Disassembling specially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/52—Outlet

Definitions

  • the invention relates to a device for temperature control of an electric vehicle battery, comprising a storage container for a liquid medium that can be filled to a maximum liquid level, a heat exchanger structure for heat exchange between the medium and the battery, and a pump driven by an electric motor for circulating the medium between the storage container and the heat exchanger structure.
  • Devices of this type are used, for example, to cool and/or heat lithium-ion cells and the like in electric vehicles.
  • Batteries that provide propulsion energy in vehicles generate so much heat at times due to rapid charging and discharging processes that they require active cooling. Conversely, in certain situations, it may also be necessary to heat such batteries to maintain their operating temperature within an optimal range.
  • the medium used to regulate the battery temperature can be, for example, a mixture of water and glycol with a suitable corrosion inhibitor.
  • coolants such as thermal oil, non-conductive fluids, and the like, can also be used.
  • the medium can also be brought into thermal contact with a refrigerant from a compressor-based refrigeration unit.
  • a device for tempering process water for a printing press comprising a storage tank for a liquid medium, a heat exchanger structure for heat exchange between the medium and the object, and a pump driven by an electric motor for circulating the medium between the storage tank and the heat exchanger structure, wherein the pump is arranged in relation to the storage tank such that its pump shaft runs vertically and it is immersed in the medium in the storage tank with a suction nozzle.
  • the object of the invention is to create a temperature control device that is characterized by small space requirements and low weight and is therefore particularly suitable for use in vehicles.
  • the heat transfer medium is thus used not only to regulate the battery temperature but also to cool the pump's drive motor. This allows for the use of a compact motor that is nevertheless suitable for high pumping capacities. Because the pump's suction port is immersed directly in the medium within the storage tank, leak-prone and space-consuming lines and connections between the storage tank and the pump are eliminated. Furthermore, the installation space is reduced even further, as at least parts of the pump are located within the storage tank. Since the motor chamber is situated in the upper part of the pump housing, above the fluid level, a reliable seal between the motor chamber and the rotor-supporting section of the shaft is significantly simplified.
  • the pumped medium is guided through the cooling jacket in such a way that it flows circumferentially around the electric motor. From the discharge port, the medium splits into two streams that flow around the motor chamber in opposite directions and rejoin at the discharge port.
  • This design has the advantage that the discharge port can be kept very short, since the medium does not need to be distributed around the circumference of the motor chamber before entering the cooling jacket. No further deflection of the medium is required at the discharge port either, so that (with vertical mounting) the overall height can be considerably reduced. Due to the low profile of the unit consisting of the storage tank and pump, the temperature control device can, for example, be positioned on the roof of a vehicle or even underneath it.
  • the pressure port enters the lower end of the cooling jacket, while the outlet port is preferably arranged radially at the upper end of the cooling jacket, so that the flow of the medium in the cooling jacket also has an upward component. This prevents the formation of zones with low fluid exchange in the cooling jacket and simultaneously facilitates venting of the pump.
  • FIG. 1 A schematic representation of a temperature control device for a battery (10) of an electric vehicle is shown.
  • the essential components of the temperature control device are a storage container 12 for a liquid, heat-conducting medium (e.g., coolant or thermal oil), a heat exchanger structure 14 for heat exchange between the medium and the battery 10, and a pump 16. with which the medium is circulated in a closed circuit between the storage tank 12 and the heat exchanger structure 14.
  • heat-conducting medium e.g., coolant or thermal oil
  • a heat exchanger structure 14 for heat exchange between the medium and the battery 10
  • a pump 16 with which the medium is circulated in a closed circuit between the storage tank 12 and the heat exchanger structure 14.
  • the storage container 12 is a hermetically sealed container filled with the liquid medium to such an extent that a gas space 20 remains above the liquid level 18, in which the pressure can be controlled by a pressure relief and venting valve 22.
  • the container can also be open to the atmosphere.
  • the storage container 12 in this example also has an electric heater 24, which can be used to maintain the temperature of the medium and thus also the temperature of the battery 10 above a certain minimum temperature.
  • the temperature control device can also have an active cooling function, whereby the cooling energy is generated outside the tank by a heat exchanger (e.g., a free cooler consisting of an air/liquid cooler with a fan or an active refrigeration compressor module) and is transferred to the medium inside the tank via a second heat exchanger in the form of an integrated cooling coil or cooling plates, either inside or outside the tank. If this second heat exchanger is located outside the tank, it is integrated into the hydraulically circulating medium in such a way that the medium circulates through this second heat exchanger, thus achieving energy exchange.
  • a heat exchanger e.g., a free cooler consisting of an air/liquid cooler with a fan or an active refrigeration compressor module
  • the pump 16 has a housing 30 which is mounted on or in the storage tank 12 such that a suction nozzle 32 of the pump is immersed in the medium in the storage tank, while a motor chamber 50 integrated into the housing is located above the liquid level 18.
  • the housing 30 forms the suction port 32 at its lower end and a pump chamber 34 further upstream.
  • a shaft 36 is rotatably mounted in the housing 10 and carries at least one impeller 38 within the pump chamber 34.
  • a cascade of three axial impellers is provided, which convey the medium drawn in via the suction port 32 into a pressure line 40 that extends from the upper end of the pump chamber 34 in a position radially offset from the shaft 36.
  • the pump 16 is mounted in the storage tank 12 such that the axis of the shaft 36 is vertically oriented and the opening of the suction port 32 is located close to the bottom 44 of the storage tank.
  • the lower part of the pump which forms the suction port 32, the pump chamber 34, and the lower part of the discharge port 40, is immersed in the medium, while the upper part of the pump is located above the liquid level 18.
  • This upper part of the housing 30 accommodates an electric motor 48, which is thus better protected against the harmful effects of the pumped medium.
  • the shaft 36 is axially fixedly mounted in the housing 30 by means of rolling bearings 49 and passes through the motor chamber 50, which is closed at its upper end by a cover 52.
  • a rotor 54 of the electric motor is arranged rotationally fixed on the shaft 36 within the motor chamber 50 and is surrounded by a stator 56, which is held stationary in the motor chamber 50 and is in thermal contact with a circumferential wall 58 of the motor chamber via its outer circumferential surface.
  • the motor chamber 50 is surrounded over most of its height by a cooling jacket 60, the walls of which are formed in one piece with the circumferential wall 58 of the motor chamber.
  • the cooling jacket 60 has an overall cylindrical shape and forms an annular chamber 62.
  • the pressure line 40 opens at a first circumferential position A, on the right into Fig. 2 , into the lower end of ring chamber 62.
  • a radially outward outlet nozzle 64 is connected to the upper end of the cooling jacket 60, through which the medium pumped by the pump enters a delivery line leading to the battery 10.
  • the medium flowing through the annular chamber 62 forms a closed fluid body around the pump motor, which is not interrupted by any sound bridges, thus achieving good sound insulation and therefore very quiet operation of the pump.
  • the opening of the pressure line 40 and the transition to the outlet nozzle could also be located close together and separated by a partition.
  • the cooling jacket 62 can be dimensioned in height so that the winding packages of the stator 56 are specifically cooled.
  • the motor chamber 50 which also houses the rolling bearings 49, is sealed against the interior of the storage tank 12 by a shaft seal 66.
  • the pump can have a level sensor and an electronic control unit that detects the liquid level 18 and regulates it so that it always remains safely below the position of the shaft seal 66.
  • the circumferential wall of the pump chamber 34 is formed by three stacked and sealed ring modules 68, each accommodating one of the impellers 38.
  • the intake port 32 is formed by a separate housing section connected to the rest of the housing by tie rods 70. This allows the ring modules to be clamped tightly and securely together. After loosening the tie rods 70 and removing the intake port 32, the number of ring modules 68 and impellers 38 can be varied as required or according to the available installation height.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (4)

  1. Dispositif destiné à tempérer une batterie (10) d'un véhicule électrique, comportant un réservoir de stockage (12) pour un milieu liquide, pouvant être rempli jusqu'à un niveau de liquide maximal, une structure d'échangeur de chaleur (14) pour un échange de chaleur entre le milieu et la batterie (10), et une pompe (16) entraînée par un moteur électrique (48) pour faire circuler le milieu entre le réservoir de stockage (12) et la structure d'échangeur de chaleur (14), dans lequel la pompe (16) est agencée par rapport au réservoir de stockage (12) de telle sorte que son arbre de pompe (36) s'étend verticalement et qu'il s'enfonce avec un embout d'aspiration (32) dans le milieu contenu dans le réservoir de stockage, dans lequel le moteur (48) est placé dans une chambre de moteur (50) qui est intégrée dans un carter (30) de la pompe et autour de laquelle le milieu pompé s'écoule, et dans lequel la chambre de pompe (50) se situe au-dessus d'un niveau de liquide maximal (18) du milieu contenu dans le réservoir de stockage (12),
    caractérisé en ce que la pompe (16) comporte une chemise de refroidissement (60) entourant la chambre de moteur (50), qui a globalement une forme cylindrique et forme une chambre annulaire (62) et qui est en liaison fluidique, d'une part, avec une chambre de pompe (34) par l'intermédiaire d'un embout de pression (40) et, d'autre part, avec un embout de sortie (64), et en ce que l'embout de pression (40), dans une première position circonférentielle (A), débouche dans la chemise de refroidissement (60) et l'embout de sortie (64), dans une seconde position circonférentielle (B) diamétralement opposée à la première position circonférentielle, est raccordé à la chemise de refroidissement (60).
  2. Dispositif selon la revendication 1, dans lequel l'embout de sortie (64) s'étend radialement à partir de la chemise de refroidissement (60).
  3. Dispositif selon la revendication 1 ou 2, dans lequel l'embout de sortie (64) est agencé sur l'extrémité axiale de la chemise de refroidissement (60) opposée à la chambre de pompe (34).
  4. Dispositif selon l'une des revendications 1 à 3, dans lequel une paroi circonférentielle de la chambre de pompe (34) est formée par plusieurs modules annulaires (68) pouvant être séparés les uns des autres et plusieurs roues (38) sont maintenues sur un arbre (36) de façon amovible.
EP21181132.8A 2020-08-20 2021-06-23 Dispositif de contrôle de température comprenant une pompe avec une enveloppe de refroidissement entourant une enceinte moteur Active EP3957861B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202020104826.0U DE202020104826U1 (de) 2020-08-20 2020-08-20 Temperiervorrichtung

Publications (2)

Publication Number Publication Date
EP3957861A1 EP3957861A1 (fr) 2022-02-23
EP3957861B1 true EP3957861B1 (fr) 2025-12-03

Family

ID=76942750

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21181132.8A Active EP3957861B1 (fr) 2020-08-20 2021-06-23 Dispositif de contrôle de température comprenant une pompe avec une enveloppe de refroidissement entourant une enceinte moteur

Country Status (2)

Country Link
EP (1) EP3957861B1 (fr)
DE (1) DE202020104826U1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60126061T2 (de) * 2001-05-12 2007-08-09 Samec S.N.C. Motorpumpenaggregat

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1275362B (de) * 1963-02-08 1968-08-14 Irving Callender Jennings Pumpenanordnung
US3748066A (en) 1971-12-13 1973-07-24 Paddle Pumps Inc Submersible pump
JPS5097U (fr) * 1973-05-02 1975-11-06
JPS5397402U (fr) * 1976-12-15 1978-08-08
US4747757A (en) 1986-11-26 1988-05-31 Haentjens Walter D Submersible mixing pump
DE9101888U1 (de) * 1990-07-04 1991-05-08 Technotrans Böhnensieker GmbH, 4414 Sassenberg Vorrichtung zur Bereitstellung von Prozesswasser für Druckmaschinen
JPH11241698A (ja) 1998-02-24 1999-09-07 Smc Corp 浸漬式ポンプ
CN206092447U (zh) * 2016-09-09 2017-04-12 威瑞（天津）机电有限公司 一种耐高温水泵
DE102019131386A1 (de) 2018-11-20 2020-05-20 Christian Behlen Kühl- und Notfallsystem für eine Batterie

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60126061T2 (de) * 2001-05-12 2007-08-09 Samec S.N.C. Motorpumpenaggregat

Also Published As

Publication number Publication date
DE202020104826U1 (de) 2021-11-26
EP3957861A1 (fr) 2022-02-23

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